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Purchase balanced dice. & test them.
You will roll them at least 99 times to generate a private key.
Look for B6 dice Bitcoin for some references.
Find a secure computer.
Remove networking capability (wifi & wired).
Boot it with an ephemeral operating system.
Generate your private key from dice rolls xor’ed with regular
Burn down the computer (just to be sure).
Store using BIP38 in as safe location.
Use a hard-to-guess password and never write it down
○ Anywhere (make sure you don’t forget it either!)
Paranoid? (only half-joking!)
Security can’t be bolted on afterwards;
Security is expensive;
Security is inconvenient;
Security is not absolute;
Please think about this – find the right security vs
convenience trade-offs for you and make sure you take
measures to achieve appropriate protection.
Q & A
Palestra DevCamp 2018 - Igor Hjelmstrom Ribeiro: Bitcoin: desafios de segurança frente à ataques de origem global.